What are they? What causes them? What should you do during?

What are earthquakes?

An earthquake is a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust.

The San Francisco Earthquake of 1906

The 1906 San Francisco earthquake struck Northern California at 5:12 am on April 18th. This earthquake had a estimated magnitude of 7.8 of 10. Severe shaking of the ground and buildings were felt throughout the entire coast of California. Devastating fires soon broke out in the city and lasted for several days. As a result, about 3,000 people died and over 80% of the city of San Francisco was destroyed. The death toll remains the greatest loss of life from a natural disaster in California's history and high in the lists of American urban disasters.

The book below, "Earthquake!: On a peaceful spring morning disaster strikes San Francisco" by Shelley Tanaka describes this disaster from varying points of view and provides the reader with beautiful illustrations that place them at the scene of the disaster.

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Watch as children, adults, animals react to unexpected ground shaking!

LIVE footage of earthquake in Kathmandu

What should you do DURING AND AFTER an earthquake?

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